Speaker
Description
Because of their large mass, heavy quarks are produced primarily at early stages of heavy-ion collisions, and therefore experience the full evolution of the system and carry information about the extent of thermalization of the QGP. Azimuthal anisotropy parameters (v_n) of charm and bottom hadrons provide unique information about the path length dependent interactions between heavy quarks and the medium. To what extent heavy quarks at low p_T flow with the medium is a good measure of the interaction strength. At high p_T, v_2 and v_3 from path length dependent energy loss provide a powerful tool to study heavy quark energy loss mechanisms. With the large PbPb data sample at 5.02 TeV collected by the CMS detector during the 2015 LHC run, azimuthal anisotropy v_2 and v_3 of D0 meson is measured over a wide p_T range and at different centralities. In this talk, new results of D0 meson v_n parameters are presented, and compared to the charged hadron v_n at the same energy and the latest theoretical calculations.
| Presentation type | Oral |
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